Inventor
ZWACK ROBERT R
US26 patents
⚠️ This page may combine multiple inventors who share the name “ZWACK ROBERT R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PPG INDUSTRIES INC
20 patentsUS4148772AApr 10, 1979
Amine acid salt-containing polymers for cationic electrodeposition
PPG INDUSTRIES INC139 citations97
US4104147AAug 1, 1978
Process for cationic electrodeposition of amine acid salt-containing polymers
PPG INDUSTRIES INC114 citations96
US4017438AApr 12, 1977
Ketimine-blocked primary amine group-containing cationic electrodepositable resins
PPG INDUSTRIES INC106 citations96
US3947339AMar 30, 1976
Method of electrodepositing primary amine group-containing cationic resins
PPG INDUSTRIES INC130 citations96
US5260135ANov 9, 1993
Photodegradation-resistant electrodepositable primer compositions
PPG INDUSTRIES INC45 citations94
US4810535AMar 7, 1989
Glycidol-modified polyepoxide-polyoxyalkylenepolyamine adducts
PPG INDUSTRIES INC40 citations93
US5767191AJun 16, 1998
Electrodepositable coating compositions and method for improved cure response
PPG INDUSTRIES INC22 citations92
US5356529AOct 18, 1994
Electrodepositable compositions containing triorganotin catalysts
PPG INDUSTRIES INC24 citations92
US4891111AJan 2, 1990
Cationic electrocoating compositions
PPG INDUSTRIES INC36 citations92
US4711917ADec 8, 1987
Cationic coating compositions for electrodeposition over rough steel
PPG INDUSTRIES INC29 citations92
US4615779AOct 7, 1986
Cationic coating compositions for electrodeposition over rough steel
PPG INDUSTRIES INC29 citations92
US5389219AFeb 14, 1995
Photodegradation-resistant electrodepositable primer compositions
PPG INDUSTRIES INC35 citations91
US5630922AMay 20, 1997
Electrodepositable coating composition containing diorganotin dicarboxylates
PPG INDUSTRIES INC18 citations84
US5202383AApr 13, 1993
High throw power electrodeposition system
PPG INDUSTRIES INC18 citations82
US4153545AMay 8, 1979
Method for cleaning membrane filter
PPG INDUSTRIES INC28 citations82
US4136025AJan 23, 1979
Method of cleaning membrane filter
PPG INDUSTRIES INC20 citations82
US4115226ASep 19, 1978
Cataphoretic electrodeposition baths containing water-soluble lead salts
PPG INDUSTRIES INC15 citations74
US4666970AMay 19, 1987
Cataphoretic electrodeposition baths containing water-soluble lead salts
PPG INDUSTRIES INC3 citations63
US5804051ASep 8, 1998
Electrodepositable coating compositions containing hydroxamic acid and derivatives thereof, and their use in a method of electrodeposition
PPG INDUSTRIES INC6 citations62
US5385962AJan 31, 1995
Photodegradation-resistant electrodepositable primer compositions containing hindering aminoether light stabilizers
PPG INDUSTRIES INC3 citations60
PPG IND OHIO INC
6 patentsUS6248225B1Jun 19, 2001
Process for forming a two-coat electrodeposited composite coating the composite coating and chip resistant electrodeposited coating composition
PPG IND OHIO INC74 citations94
US6423425B1Jul 23, 2002
Article having a chip-resistant electrodeposited coating and a process for forming an electrodeposited coating
PPG IND OHIO INC35 citations92
US6110341AAug 29, 2000
Electrodeposition baths containing organic phosphorous-based compounds
PPG IND OHIO INC28 citations92
US6017432AJan 25, 2000
Electrodepositable coating compositions and their use in a method of cationic electrodeposition
PPG IND OHIO INC52 citations92
US5972189AOct 26, 1999
Electrodepositable coating composition containing bismuth diorganodithiocarbamates and method of electrodeposition
PPG IND OHIO INC42 citations92
US5948229ASep 7, 1999
Electrodepositable coating compositions having improved cure response
PPG IND OHIO INC14 citations73